FactCheck.org: Annenberg Political Fact Check 'This site describes itself as a nonpartisan, nonprofit, consumer advocate for voters that monitors the factual accuracy of what is said by major U.S. political players in the form of TV ads, debates, speeches, interviews, and news releases. '

Follow the Money The nonpartisan Institute on Money in State Politics tracks contributions in all 50 states and makes this data easily searchable online.

Electoral College Information on the U.S. electoral college, including its history, how it works, relevant law, allocation of electoral votes, results from past elections, deadlines for state officials, links to teaching resources, and a FAQ. From the National Archives and Record Administration (NARA).

PolitiFact researches statements made by politicians and verifies whether they're true or not.

Project VoteSmart the easiest way to get simple, readable information about all the candidates on a nationwide and local level.